public function DateRecurRulePartConstraintValidator::validate in Recurring Dates Field 3.0.x

Same name and namespace in other branches

1. 8.2 src/Plugin/Validation/Constraint/DateRecurRulePartConstraintValidator.php \Drupal\date_recur\Plugin\Validation\Constraint\DateRecurRulePartConstraintValidator::validate()
2. 3.x src/Plugin/Validation/Constraint/DateRecurRulePartConstraintValidator.php \Drupal\date_recur\Plugin\Validation\Constraint\DateRecurRulePartConstraintValidator::validate()
3. 3.1.x src/Plugin/Validation/Constraint/DateRecurRulePartConstraintValidator.php \Drupal\date_recur\Plugin\Validation\Constraint\DateRecurRulePartConstraintValidator::validate()

File

src/Plugin/Validation/Constraint/DateRecurRulePartConstraintValidator.php, line 36

Class

DateRecurRulePartConstraintValidator

Validates the DateRecurRulePartConstraint constraint.

Namespace

Drupal\date_recur\Plugin\Validation\Constraint

Code

public function validate($value, Constraint $constraint) : void {
  assert($value instanceof DateRecurItem);
  assert($constraint instanceof DateRecurRulePartConstraint);

  /** @var \Drupal\date_recur\Plugin\Field\FieldType\DateRecurFieldItemList $fieldList */
  $fieldList = $value
    ->getParent();
  $grid = $fieldList
    ->getPartGrid();

  // Validator do not apply to field values without RRULE.
  if (empty($value->rrule)) {
    return;
  }

  // Catch exceptions thrown by invalid rules.
  try {

    // Use a fake start time as there may be an empty or invalid start date.
    $helper = DateRecurHelper::create($value->rrule, new \DateTime());
  } catch (\Exception $e) {

    // Invalid RRULE's are handled by DateRecurRruleConstraint.
    return;
  }
  foreach ($helper
    ->getRules() as $rule) {

    /** @var \Drupal\date_recur\DateRecurRuleInterface $rule */
    $frequency = $rule
      ->getFrequency();

    // Check if a frequency is supported.
    if (!$grid
      ->isFrequencyAllowed($frequency)) {
      $frequencyLabels = $this
        ->getFrequencyLabels();
      $frequencyLabel = $frequencyLabels[$frequency] ?? $frequency;
      $this->context
        ->addViolation($constraint->disallowedFrequency, [
        '%frequency' => $frequencyLabel,
      ]);

      // If the frequency isn't supported then dont continue validating its
      // parts as it creates redundant violations.
      continue;
    }
    $parts = $rule
      ->getParts();
    unset($parts['FREQ']);
    foreach (array_keys($parts) as $part) {
      try {

        // Check if a part is supported.
        if (!$grid
          ->isPartAllowed($frequency, $part)) {
          $partLabels = $this
            ->getPartLabels();
          $partLabel = $partLabels[$part] ?? $part;
          $this->context
            ->addViolation($constraint->disallowedPart, [
            '%part' => $partLabel,
          ]);
        }
      } catch (DateRecurRulePartIncompatible $e) {

        // If a part is incompatible, add a violation.
        $frequencyLabels = $this
          ->getFrequencyLabels();
        $frequencyLabel = $frequencyLabels[$frequency] ?? $frequency;
        $partLabels = $this
          ->getPartLabels();
        $partLabel = $partLabels[$part] ?? $part;
        $this->context
          ->addViolation($constraint->incompatiblePart, [
          '%frequency' => $frequencyLabel,
          '%part' => $partLabel,
        ]);
      }
    }
  }
}